1. Complications of spinal manipulation: a comprehensive review of the literature;Assendelft;J Fam Pract,1996
2. Helical axes of passive knee joint motions;Blankevoort;J Biomech,1990
3. The immediate effect of manipulation versus mobilisation on pain and range of motion in the cervical spine a randomised, controlled trial;Cassidy;J Manipulative Physiol Ther,1992
4. Efficacy and risk of chiropractic manipulation: what does the evidence suggest?;Coulter;Integr Med,1998
5. Textbook of orthopaedic medicine;Cyriax,1984